Research Of Integrated Navigation Systems Precision

The noise estimation theory of the GPS/INS Integrated Navigation System and the error analysis is are systematically discussed in this dissertation. At first the paper briefly introduce the error of the integrated System and the cause of the error, and give an estimation model of the error. In order to solve the precise estimation of the error using artificial neural network, then an artificial neural network model is discussed. And in allusion to the shortcomings on the fitting of noises by least square, a new procedure is presented to modify the estimations of model parameter of the noise. It can control the effects of the correlation noise of except for first order self-correlation noise. Using the model the error of GPS/INS Integrated Navigation System is estimated. Finally given the precise error estimation with the known data using the artificial neural network.